Need replacement coil balance

A quick learner says:
May 16, 2018
We need to replace these parts on both sides of window. Our windows are MI 3500 series, sash is 34? wide and 29 1/4? height. Can you help identify these replacement parts?
Thumbnail of the uploaded file named 1889B9D2-5EB5-4590-99B4-D88DDB9E998A.jpeg
Thumbnail of the uploaded file named 77B2019D-B823-475F-AF56-B52C43E3953D.jpeg
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Paul from SWISCO responded:
May 22, 2018

Hello,

The parts you show in your picture are our 15-180 pivot shoe with 15-186 balance clip and 15-182 bushing. The coil spring is our S190. We will need the stamped spring code weight number on the coil spring. Thank you!
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
Balance Bushing
Balance Bushing
15-182
$1.80
Coil Balance Clip
Coil Balance Clip
15-186
$5.05
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